ATTO Technology VT-Class manual Disk Drive Activity and Disk Fault LEDs Each

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Maintenance Services Commands

an error code, please provide both the first and second blink code values.

During a fault condition, more detailed information about the fault may be available via the CLI or the ExpressNAV interface over the RS- 232 interface port or the optional Ethernet port. These error messages should be reported to technical personnel to assist in debugging the problem.

The blink codes are also saved internally by the array to NVRAM (Non Volatile Random Access Memory) and will be displayed at power up if the power to the array is recycled.

Disk Drive Activity and Disk Fault LEDs Each

dual disk drive sled assembly contains two green activity LEDs and an amber disk fault LED. Once the system has successfully powered up and passed POST, the green activity LEDs are full on and the disk fault LED off.

The Drive 1 and Drive 2 activity LEDs will stay full on when the system is operational and no disk drive activity is present. As the disk drives are accessed, the green LEDs will flash. If the disk drives are heavily accessed the green activity LEDs will appear to flash at a high rate or may even appear to be completely turned off.

The amber disk fault LED will be off under normal operation. If either of the disk drives on a dual disk drive assembly reports a disk error of

any kind, the amber disk fault LED will come on. The disk fault LED can be activated by minor issues such as a disk drive writing to a bad sector (which is usually corrected by the disk drive the next time it writes) or major issues such as a head crash or complete drive failure.

When the disk fault LED is turned on, the system will issue a detailed message via the CLI. These messages are not written permanently to the error log file but should be recorded to help assess the disk problem.

If the disk drive error is a non fatal error and the drive is still functional, the array will continue to read and write data to the disk drive but the disk fault LED will remain on. If you repeat a drive command or action and it completes successfully, the disk fault LED may have been set by an anomaly in the disk drive. You can clear the Disk Fault LED by either power cycling the array or issuing the SledFaultLED command in CLI as per

on page 38

If you repeat a disk command or action and the disk fault LED remains on, the disk error may be serious. You should write down the error message issued by the CLI and contact technical support via the means easiest for you for assistance (see Warranty on page A-xv). If you choose to replace the suspected faulty dual disk drive sled assembly, follow the appropriate procedures.

59 Diamond Storage Array

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Contents Diamond Storage Array VT-Class Page Page Contents Atto ExpressNAV Browser-based Interface ExpressNAV PagesMaintenance Services Commands Fibre Channel Configuration CommandsSerial Port Configuration Commands Diagnostic CommandsDrive Management Commands ECCResetting Defaults Configuring the Diamond-VTDiagnostics, Upgrade and Maintenance Troubleshooting Virtual TapeAppendix F Product Safety Xiii Appendix D Sample Zoning Command SequencesAppendix E Specifications Xii Appendix G Part numbers Xiv Appendix H WarrantyDisclaimer PrefaceAtto Technology, Inc Page Diamond-VT features Diamond Storage Array-VT Product OverviewFibre Channel model Scsi modelEthernet Diamond-VT Technical OverviewRS-232 400MB/secAdxt Powers ATA to New Levels ATA Interface Engine AIE The interface to eachSet up the Ethernet connection Installation InstructionsPhysical setup Connect to EthernetConnect to Ethernet, on page 5, follow Set up Virtual Tape configurationConfiguration examples RAID Level 10 with Hot Spare sledsDiamond-VT Components Floor modelRack mount model Floor Model Diamond-VT Physical SetupRack Mount Physical setup Autoconfiguration Connecting a Fibre Channel ArrayManual configuration Fibre Channel connections Bus speed, MB/sec Bus width Max. bus lengths Max. device Connecting a Scsi ArrayTo connect the Scsi Diamond-VT BitsScsi connections Atto ExpressNAV Accessing the Diamond-VTCommand Line Interface RS-232 portSnmp Details In-band CLI Over Fibre ChannelInitiator Host Diamond-VT Initiator/Host Diamond-VT Serial Port Access Serial port access To use Telnet Ethernet Access Telnet and Snmp ProtocolsTo connect to the Ethernet port To use SnmpTraps are generated for the following situations Navigating ExpressNAV Atto ExpressNAV Browser-based InterfaceBrowser compatibility Reset button Parameter name Submit buttonExpressNAV Pages Logical Units Tape VolumesConfiguration PartitionsSaveConfiguration command CLI Interface via ASCII-based CommandsReady Return type/mode Return format/content HostnameSummary of CLI Commands Command Defaults ExampleCLI index Zoneaddhost zone1 General Use Commands Ethernet Commands TelnetTimeout SNMPUpdatesTelnetPassword SNMPTrapsFibre Channel Configuration Commands FcScsiBusyStatus FcPortListFcPortName FcWWNameSerialPortHandshake Serial Port Configuration CommandsSerialPortBaudRate SerialPortEchoMaintenance Services Commands Diagnostic Commands TapeVolumeInfo PowerAudibleAlarmSledFaultLED RAID5ClearDataStatusDrive Management Commands IdeTransferRate DriveWipeLUNState IdeWriteCacheRAIDHaltRebuild RAID5ClearDataRAIDInterleave RAIDManualRebuildRebuildPriority RestoreModePagesTapeVolumeBlockSize TapeWriteProtectZoneDelete ZoneClearAllZoneCreate ZoneRemoveDeviceCLI configure drives RAID Level Configuring the Diamond-VTVirtual Tape Volumes Hot Spare sledsInterleave Enhancing performanceVirtual Tape To set up RAID Level 10 with Hot Spare sleds Optional Hot Spare SledPrinciples of Zoning Planned configuration is a work-in-processZones Device portion defines the LUNsStatus and Sense Data Factors to considerType ZoneInfo To remove zones Configuring ZoningTo create a zone To change current zonesErrors Zone definition tables The Zone commandsUpdating firmware via the RS-232 serial port Updating FirmwareUpdating firmware via the optional Ethernet card Cd c\diamond\flash Type put ....imaRS-232 Monitoring Port and CLI One tool to Diagnostics, Upgrade and MaintenancePower On Self Test Post Each time Ethernet Monitoring Port and CLI If the optionalSystem Fault LED and Error Codes If a serious Power Supply Monitoring The Diamond-VT25C 32C 35C 40C Disk Drive Activity and Disk Fault LEDs Each Monitoring, reporting Command Line Interface messages TroubleshootingWindows 2000 special instructions Error Messages Specific situations and suggestionsIf you cannot read or write to the Diamond-VT If a power supply failsIf you can’t access the Diamond-VT CLI via Ethernet Type FirmwareRestart in CLIDefault Resetting DefaultsFactory Default Return to Default settingsCommand Default Rebuilding RAID Level 5 and 10 Configurations To synchronize mirrored drives manually Hardware Maintenance Hardware maintenance Hot Swap Operating Instructions Disk DrivesTo replace a blower assembly Power SuppliesBlower Assemblies SAN technology Appendix a GlossaryFibre Channel technology Scsi protocolAppendix Appendix B ATA Disk Technology FeatureFibre Channel Appendix C LunInfo for a Jbod setup LunInfo PartitionInfo active 59TapeVolumeInfo ZoneInfoViii Simple configuration Appendix D Sample Zoning Command SequencesFirst time configuration after download Symmetric ModelZoneAddPort zone1 ZoneCreate zone2 Asymmetric ModelZoneClearAll ZoneCreate zone1 ZoneAddPort zone2 ZoneCreate zone3Combined Symmetric/Asymmetric Model Floor Mount Dimensions Appendix E SpecificationsRack Mount Dimensions Environmental and physicalEMC specifications Appendix F Product SafetySafety compliances Radio and television interferenceAppendix G Part numbers Description All modelsManufacturer limited warranty Appendix H WarrantyContact Atto Technology, Inc
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